.container {
  position: relative;
  width: 1240px;
  margin-right: auto;
  margin-left: auto;
}

a img {
  width: 100%;
  height: 100%;
}

input {
  outline: none;
  box-sizing: border-box;
  font-size: 14px;
}

.fl {
  float: left;
}

.fr {
  float: right;
}

.clearfix:before,
.clearfix:after {
  content: ' ';
  display: table;
}

.clearfix:after {
  clear: both;
}

.header-logo {
  display: inline-block;
  width: 55px;
  height: 55px;
  background-color: #FF6600;
}

.header-logo a {
  display: inline-block;
  width: 110px;
  height: 55px;
}

.header-logo a:before {
  content: ' ';
  display: inline-block;
  width: 55px;
  height: 55px;
  background: url("/imgs/mi-logo.png") no-repeat center;
  background-size: 55px;
  transition: margin .2s;
}

.header-logo a:after {
  content: ' ';
  display: inline-block;
  width: 55px;
  height: 55px;
  background: url("/imgs/mi-home.png") no-repeat center;
  background-size: 55px;
}

.header-logo a:hover:before {
  margin-left: -55px;
  transition: margin .2s;
}
